| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|
| #Q001 | operational | operational | mandatory | General discharge minimization | wastewater, other | Minimize discharges through management practices including but not limited to storage onboard the vessel, proper storage or transfer of materials, or reduced production of discharge. | Applies to any discharge incidental to the normal operation of a vessel. | high |
| #Q002 | operational | operational | mandatory | Discharge location and underway requirement | wastewater, other | Discharge while underway when practicable and as far from shore as practicable. | Applies to any discharge incidental to the normal operation of a vessel. | high |
| #Q003 | prohibition | operational | mandatory | Prohibition on addition of materials | wastewater, other | Addition of any materials to a discharge, other than for treatment of the discharge, that is not incidental to the normal operation of the vessel is prohibited. | Applies to any discharge incidental to the normal operation of a vessel. | high |
| #Q004 | prohibition | operational | mandatory | Prohibition on dilution | wastewater, other | Dilution of any discharge for the purpose of meeting any standard in this part is prohibited. | Applies to any discharge incidental to the normal operation of a vessel. | high |
| #Q005 | operational | operational | mandatory | Use of materials onboard | other | Any material used onboard that will be subsequently discharged (e.g., disinfectants, cleaners, biocides, coatings, sacrificial anodes) must: (i) Be used according to manufacturer specifications and only in the amount necessary to perform the intended function of that material; (ii) Not contain any materials banned for use in the United States; and (iii) If subject to FIFRA registration, be used according to the FIFRA label. | Applies to any material used onboard that will be subsequently discharged. | high |
| #Q006 | operational | operational | mandatory | Cargo containerization | other | To minimize and prevent discharge of cargo or other onboard materials, cargo must be containerized or covered except for hopper barges without a fixed cover or where covering cargo would negatively impact safety of the vessel, risk loss of life at sea, or otherwise interfere with essential vessel operations. | high | |
| #Q007 | operational | health | mandatory | Storage of toxic or hazardous materials | other | Store toxic or hazardous materials in appropriately sealed, labeled, and secured containers located in areas of the vessel that minimize exposure to ocean spray and precipitation consistent with vessel design, unless the master determines this would interfere with essential vessel operations or safety of the vessel or crew, or would violate any applicable regulations that establish specifications for safe transportation, handling, carriage, and storage of toxic or hazardous materials. | Applies to storage of toxic or hazardous materials. | high |
| #Q008 | prohibition | health | mandatory | Prohibition on disposal of toxic containers | other | The overboard discharge or disposal of any containers holding toxic or hazardous materials is prohibited. | high | |
| #Q009 | operational | operational | mandatory | Broom clean spaces before washing | other | Prior to washing any compartment, tank, cargo or other space and discharging washwater overboard from the area, that space must be in broom clean condition or its equivalent. | Prior to washing spaces and discharging washwater overboard. | high |
| #Q010 | operational | operational | mandatory | Topside surface maintenance | other | Topside surfaces (e.g., exposed decks, hull above waterline, tank, cargo, and related appurtenances) must be maintained to minimize the discharge of cleaning compounds, paint chips, nonskid material fragments, and other materials associated with exterior surface preservation. | high | |
| #Q011 | prohibition | operational | mandatory | Prohibition on discharge of unused paint | other | Discharge of unused paint and coatings is prohibited. | high | |
| #Q012 | operational | operational | mandatory | Maintenance of oil equipment | wastewater, other | Any equipment that may release, drip, leak, or spill oil or oily mixtures, fuel, or other toxic or hazardous materials, including to the bilge, must be maintained to minimize or eliminate the discharges. | high | |
| #Q013 | administrative | operational | mandatory | Biofouling management plan | other | A biofouling management plan must be developed to minimize the discharge of biofouling organisms. The plan elements must prioritize procedures and strategies to prevent macrofouling, thereby minimizing the potential for the introduction and spread of ANS. The plan must describe the vessel-specific anti-fouling systems and biofouling management practices necessary to comply with the requirements in this section. | Applies to any vessel subject to regulation under this part. | high |
| #Q014 | prohibition | operational | mandatory | Prohibition on discharge of used oil | wastewater | The discharge of used or spent oil no longer being used for its intended purpose is prohibited. | Applies to vessel equipment and operations that use or discharge oil or oily mixtures. | high |
| #Q015 | prohibition | operational | mandatory | Prohibition on harmful quantities of oil | wastewater | The discharge of oil in such quantities as may be harmful is prohibited. | Applies to vessel equipment and operations that use or discharge oil or oily mixtures. | high |
| #Q016 | operational | operational | mandatory | Use of Environmentally Acceptable Lubricants (EAL) | other | An environmentally acceptable lubricant (EAL) must be used in any oil-to-sea interface unless such use is technically infeasible. | Applies to vessel equipment and operations that use or discharge oil or oily mixtures. | high |
| #Q017 | administrative | operational | mandatory | Ballast water management plan | other | Maintain a ballast water management plan that addresses both the uptake and discharge of ballast water. The plan must describe the vessel-specific BWMSs and practices necessary to comply with the requirements in this section. | Any vessel equipped with ballast tanks. | high |
| #Q018 | operational | operational | mandatory | Minimize gravity draining of ballast tanks | other | Minimize the use of gravity to drain ballast tanks in port. | Any vessel equipped with ballast tanks. | high |
| #Q019 | operational | operational | mandatory | High sea suction requirement | other | Use high sea suction in port or where clearance to the bottom of the waterbody is less than 5 meters to the lower edge of the sea chest, as practicable. | Any vessel equipped with ballast tanks. | high |
| #Q020 | operational | operational | mandatory | Avoid ballast discharge near coral reefs | other | Avoid the discharge or uptake of ballast water in areas with coral reefs. Discharge and uptake should be conducted as far from coral reefs as practicable. | Any vessel equipped with ballast tanks. | high |
| #Q021 | prohibition | operational | mandatory | Clean ballast tanks / Prohibit sediment discharge | other | Periodically clean ballast tanks to remove sediment. Discharge of sediment from ballast tank cleaning is prohibited. | Any vessel equipped with ballast tanks. | high |
| #Q022 | treatment | treatment | mandatory | New Laker BWMS Requirement | other | Any new Laker equipped with ballast tanks must install, operate, and maintain a BWMS that has been type-approved by the USCG. | Applies to any new Laker equipped with ballast tanks. | high |
| #Q023 | operational | operational | mandatory | Ballast water exchange outside EEZ | other | Any vessel that carries ballast water taken on in areas less than 200 NM from any shore that will subsequently operate outside the EEZ and more than 200 NM from any shore must: (i) Conduct ballast water exchange in waters not less than 200 NM from any shore prior to discharging that ballast water; and (ii) Commence ballast water exchange not less than 200 NM from any shore and as early in the vessel voyage as practicable. | Prior to an applicable ballast water discharge standard compliance date, unless excluded. | high |
| #Q024 | prohibition | treatment | mandatory | Bilgewater additive prohibition | wastewater | The discharge of bilgewater from any vessel must not contain any flocculants or other additives except when used with an oily water separator or to maintain or clean equipment. | Applies to bilgewater discharges. | high |
| #Q025 | prohibition | aesthetic | mandatory | Bilgewater sheen removal prohibition | wastewater | The use of any additives to remove the appearance of a visible sheen is prohibited. | Applies to bilgewater. | high |
| #Q026 | operational | operational | mandatory | Bilgewater discharge operation | wastewater | For any vessel of 400 GT and above, the discharge of bilgewater must: (1) Occur when the vessel is underway; ... (3) If technologically feasible, occur at least 1 NM from shore. | Vessels of 400 GT and above. | high |
| #Q027 | operational | operational | mandatory | Minimize boiler blowdown in port | other | The discharge from boiler blowdown must be minimized in port. | Applies to discharges resulting from boiler blowdown. | high |
| #Q028 | design | operational | mandatory | Cathodic protection space filling | other | Spaces between any flush-fit anode and backing must be filled to remove potential hotspots for biofouling organisms. | Applies to a vessel's cathodic corrosion control protection device. | high |
| #Q029 | operational | operational | mandatory | Consider less toxic sacrificial anodes | other | The vessel operator must consider using, but is not required to use, less toxic metals when selecting sacrificial anodes. | When selecting sacrificial anodes. | high |
| #Q030 | operational | operational | mandatory | Rinse anchors and chains | other | Anchors and anchor chains must be rinsed of biofouling organisms and sediment when the anchor is retrieved. | When the anchor is retrieved. | high |
| #Q031 | prohibition | operational | mandatory | Prohibition of chain locker discharge in port | other | The discharge of biological organisms, sediment, precipitation, and seawater from any chain locker is prohibited in port. | In port. | high |
| #Q032 | operational | operational | mandatory | Deck coamings or drip pans | other | Coamings or drip pans must be used for machinery that is expected to leak or otherwise release oil on the deck; accumulated oil must be collected. | Applies to deck machinery. | high |
| #Q033 | operational | operational | mandatory | Deck washdown debris control | wastewater | Control measures must be used to minimize the introduction of on-deck debris, garbage, residue, spills, floating solids, visible foam, halogenated phenolic compounds, dispersants, and surfactants into deck washdown and runoff. | Applies to deck washdown and runoff. | high |
| #Q034 | operational | operational | mandatory | Broom clean decks | other | Vessel decks must be kept in broom clean condition whenever the vessel is underway and prior to any deck washdown. | Underway and prior to deck washdown. | high |
| #Q035 | operational | health | mandatory | Minimally-toxic deck soap | other | Any soap, cleaner, or detergent used for deck washdown must be minimally-toxic, phosphate-free, and biodegradable. | For deck washdown. | high |
| #Q036 | prohibition | operational | mandatory | Prohibition of toxic desalination cleaning discharge | wastewater | The discharge resulting from the cleaning of desalination and purification systems with toxic or hazardous materials is prohibited. | Applies to discharges from onboard desalination and purification systems. | high |
| #Q037 | prohibition | operational | mandatory | Prohibition of untreated elevator pit discharge | wastewater | The discharge of untreated accumulated water and sediment from any elevator pit is prohibited. | Applies to the liquid that accumulates in, and is discharged from, the sumps of elevator wells. | high |
| #Q038 | prohibition | treatment | mandatory | EGCS sludge discharge prohibition | wastewater | Discharges of sludge or residues generated from treatment of EGCS or EGR washwater or bleed-off water are prohibited. | Applies to EGCS or EGR washwater or bleed-off water. | high |
| #Q039 | prohibition | health | mandatory | Fluorinated firefighting foam prohibition | other | The discharge of fluorinated firefighting foam is prohibited unless required for certification or inspection under 46 CFR 31.10 through 31.18(c), 46 CFR 107.235(b)(4), or by the marine inspector to ensure vessel safety and seaworthiness. | Applies to the discharge from fire protection equipment. | high |
| #Q040 | prohibition | operational | mandatory | Prohibition of untreated gas turbine washwater | wastewater | The discharge of untreated gas turbine washwater is prohibited unless infeasible. | Applies to discharges from the washing of gas turbine components. | high |
| #Q041 | operational | operational | mandatory | Graywater kitchen waste minimization | wastewater | The introduction of kitchen waste, food, oils, and oily residues to the graywater system must be minimized. | Applies to discharges of graywater. | high |
| #Q042 | operational | health | mandatory | Minimally-toxic graywater soaps | wastewater | Any soaps, cleaners, detergents, and other substances used by vessel operators or provided by vessel operators to persons onboard and discharged in graywater must be minimally-toxic, phosphate-free, and biodegradable. | Applies to substances discharged in graywater. | high |
| #Q043 | prohibition | operational | mandatory | Graywater near-shore prohibition | wastewater | The discharge of graywater is prohibited from any vessel: (1) Within 3 NM from shore that voyages at least 3 NM from shore and has remaining available graywater storage capacity, unless the discharge meets the standards in paragraph (f) of this section; and (2) Within 1 NM from shore that voyages at least 1 NM from shore but not beyond 3 NM from shore and has remaining available graywater storage capacity, unless the discharge meets the standards in paragraph (f) of this section. | Applies to vessels with available graywater storage capacity. | high |
| #Q044 | operational | operational | mandatory | Biofouling transport minimization | other | The transport of attached living organisms and passive discharge of biofouling must be minimized when traveling into U.S. waters from outside the EEZ or between COTP Zones. | Applies to the discharge of antifouling coatings, biofouling organisms, and other materials from vessel hull and niche areas. | high |
| #Q045 | prohibition | health | mandatory | TBT prohibition in anti-fouling coatings | other | Anti-fouling coatings must not contain tributyltin (TBT) or any other organotin compound used as a biocide. | high | |
| #Q046 | prohibition | health | mandatory | Cybutryne prohibition in anti-fouling coatings | other | Anti-fouling coatings must not contain cybutryne. | high | |
| #Q047 | prohibition | operational | mandatory | Prohibition of in-water cleaning of macrofouling without capture | other | Any discharge from in-water cleaning without capture of macrofouling is prohibited. | During hull and niche area cleanings. | high |
| #Q048 | prohibition | operational | mandatory | Untreated non-oily machinery wastewater prohibition | wastewater | The discharge of untreated nonoily machinery wastewater and packing gland or stuffing box effluent containing toxic or bioaccumulative additives, or the discharge of oil in such quantities as may be harmful, is prohibited. | Applies to discharges from machinery that contains no oil. | high |
| #Q049 | operational | treatment | mandatory | Pool and spa discharge requirements | other | Except for unintentional or inadvertent releases from overflows across the decks... discharge of pool and spa water must: (1) Occur only while the vessel is underway, unless determined to be infeasible; and (2) Meet the following numeric discharge standard... | Applies to discharges from pools and spas. | high |
| #Q050 | design | treatment | mandatory | Marine Growth Prevention System (MGPS) requirement | other | Seawater piping systems that accumulate macrofouling must be fitted with a Marine Growth Prevention System (MGPS). | Applies to seawater piping systems. | high |
| #Q051 | prohibition | operational | mandatory | Prohibition of sonar dome interior water discharge | other | The discharge of water from inside the sonar dome is prohibited during maintenance or repair. | Applies to discharges from sonar domes. | high |
| #Q052 | prohibition | operational | mandatory | Federally-protected waters graywater prohibition | wastewater | The discharge of graywater into federally-protected waters from any vessel with remaining available graywater storage capacity is prohibited. | When a vessel is operating in federally-protected waters. | high |
| #Q053 | administrative | reporting | mandatory | Discharger Responsibility for Information | drinking water, wastewater | It is the discharger's responsibility to provide all data and other information requested by the RWQCB before the issuance, reissuance, or modification of a permit to the extent feasible. | Before the issuance, reissuance, or modification of a permit | high |
| #Q054 | monitoring | reporting | mandatory | Periodic Monitoring for Non-limited Pollutants | drinking water, wastewater | The RWQCB shall require periodic monitoring (at least once prior to the issuance and reissuance of a permit) for pollutants for which criteria or objectives apply and for which no effluent limitations have been established | Prior to issuance or reissuance of a permit; low volume discharges may be exempt | high |
| #Q055 | design | operational | mandatory | Mixing Zone Minimization | drinking water, wastewater | A mixing zone shall be as small as practicable. | Where mixing zones are granted | high |
| #Q056 | administrative | reporting | mandatory | Compliance Schedule Justification | drinking water, wastewater | The discharger shall submit to the RWQCB the following justification before compliance schedules may be authorized in a permit: (a) documentation that diligent efforts have been made to quantify pollutant levels in the discharge and the sources of the pollutant in the waste stream, and the results of those efforts; (b) documentation of source control and/or pollution minimization efforts currently underway or completed; (c) a proposed schedule for additional or future source control measures, *pollutant minimization actions, or waste treatment (i.e., facility upgrades); and (d) a demonstration that the proposed schedule is as short as practicable. | Before compliance schedules may be authorized | high |
| #Q057 | operational | treatment | mandatory | Pollutant Minimization Program | drinking water, wastewater | Dischargers shall be required to conduct a Pollutant Minimization Program (PMP) in accordance with section 2.4.5.1 when there is evidence... that the priority pollutant is present in the effluent above an effluent limitation | When sample results are reported as DNQ or ND and the limit is lower than the ML or MDL | high |
| #Q058 | monitoring | reporting | mandatory | 2,3,7,8-TCDD Congener Monitoring | drinking water, wastewater | each RWQCB shall require (as described below) major and minor POTW and industrial dischargers in its region to conduct effluent monitoring for the 2,3,7,8TCDD congeners listed above. | Monitoring for 17 congeners once during dry and once during wet weather | high |
| #Q059 | corrective_action | treatment | mandatory | Toxicity Reduction Evaluation | drinking water, wastewater | If a discharge causes or contributes to chronic toxicity in a receiving water body, a toxicity reduction evaluation (TRE) is required. | Where repeated tests reveal toxicity | high |
| #Q060 | administrative | operational | mandatory | Categorical Exception Requirements | drinking water, wastewater | For each project, the discharger shall notify potentially affected public and governmental agencies. Also, the discharger shall submit to the Executive Officer of the appropriate RWQCB, for approval: (1) A detailed description of the proposed action, including the proposed method of completing the action; (2) A time schedule; (3) A discharge and receiving water quality monitoring plan... (4) CEQA documentation; (5) Contingency plans; (6) Identification of alternate water supply (if needed); and (7) Residual waste disposal plans. | For resource management or drinking water maintenance exceptions | high |
| #Q061 | design | operational | mandatory | Site-specific translator study approval | drinking water, wastewater | The site-specific study plan (including sampling design) must be approved by the RWQCB, after consultation with the California Department of Fish and Game, prior to conducting the study. | When conducting a study to develop site-specific metal or selenium translators | high |
| #Q062 | prohibition | health | mandatory | Prohibitions for mixing zones | drinking water, wastewater | A mixing zone shall not: (1) compromise the integrity of the entire water body; (2) cause acutely toxic conditions... (3) restrict the passage of aquatic life; (4) adversely impact habitats... (11) be allowed at or near any drinking water intake. | Where a mixing zone is granted | high |
| #Q063 | reporting | reporting | mandatory | Interim requirement notification | drinking water, wastewater | The interim requirements shall state that the discharger must notify the RWQCB, in writing, no later than 14 days following each interim date, of its compliance or noncompliance with the interim requirements. | When a compliance schedule includes interim requirements | high |
| #Q064 | monitoring | reporting | mandatory | Laboratory certification and QA/QC requirements | drinking water, wastewater | Laboratories analyzing monitoring samples shall be certified by the Department of Health Services, in accordance with the provision of Water Code Section 13176, and must include quality assurance/quality control data with their reports. | Applies to all monitoring samples submitted to the RWQCB | high |
| #Q065 | reporting | reporting | mandatory | Reporting Level and MDL disclosure | drinking water, wastewater | The RWQCB shall require in the permit that the discharger shall report with each sample result: 1. The Reporting Level (RL)... and 2. The laboratory's current Method Detection Limit (MDL). | When reporting analytical results for priority pollutants | high |
| #Q066 | monitoring | reporting | mandatory | Calibration standard instruction to laboratories | drinking water, wastewater | Dischargers are to instruct laboratories to establish calibration standards so that the ML value... is the lowest calibration standard. | Applies when selecting analytical methods and setting up laboratory protocols | high |
| #Q067 | prohibition | reporting | mandatory | Prohibition on data extrapolation | drinking water, wastewater | At no time is the discharger to use analytical data derived from extrapolation beyond the lowest point of the calibration curve. | Applies to all reported analytical monitoring data | high |
| #Q068 | administrative | operational | mandatory | Exception restoration certification | drinking water, other | upon completion of the project, the discharger shall provide certification by a qualified biologist that the receiving water beneficial uses have been restored. | Upon completion of projects granted a categorical exception under section 5.3 | high |
| #Q069 | administrative | operational | mandatory | Hardness and pH adjustment verification | drinking water, wastewater | When implementing the provisions of this Policy, the RWQCB shall ensure that criteria/objectives are properly adjusted for hardness or pH, if applicable, using the hardness or pH values for the receiving water, and that translators are appropriately applied (in accordance with section 1.4.1), if applicable. | high | |
| #Q070 | reporting | reporting | mandatory | Priority pollutant reporting protocols | drinking water, wastewater | The discharger shall report the results of analytical determinations for the presence of chemical constituents in a sample using the following reporting protocols: 1. Sample results greater than or equal to the RL shall be reported as measured by the laboratory (i.e., the measured chemical concentration in the sample). 2. Sample results less than the RL, but greater than or equal to the laboratory's MDL, shall be reported as 'Detected, but Not Quantified,' or DNQ. The *estimated chemical concentration of the sample shall also be reported. ... 3. Sample results less than the laboratory's MDL shall be reported as 'Not Detected,' or ND. | When reporting analytical results for priority pollutants | high |
| #Q071 | monitoring | treatment | mandatory | Chronic toxicity test species requirement | drinking water, wastewater | At least three test species with approved test protocols shall be used to measure compliance with the toxicity objective. | To determine compliance with the chronic aquatic life toxicity objective | high |
| #Q072 | monitoring | reporting | mandatory | Reference toxicant sensitivity determination | drinking water, wastewater | The sensitivity of the test organisms to a reference toxicant shall be determined concurrently with each bioassay and reported with the test results. | During chronic toxicity testing bioassays | high |
| #Q073 | corrective_action | treatment | mandatory | Requirement to eliminate toxicity source | drinking water, wastewater | Once the source of toxicity is identified, the discharger shall take all reasonable steps necessary to eliminate toxicity. | Upon identification of the source of toxicity in a toxicity reduction evaluation (TRE) | high |
| #Q074 | monitoring | operational | mandatory | PMP Influent Monitoring Requirement | drinking water, wastewater | The program shall include... Quarterly monitoring for the reportable priority pollutant(s) in the influent to the wastewater treatment system | As a required component of a Pollutant Minimization Program (PMP) | high |
| #Q075 | design | operational | mandatory | Mixing Zone Study for Incompletely-Mixed Discharges | wastewater | Dilution credits and mixing zones for incompletely-mixed discharges shall be considered by the RWQCB only after the discharger has completed an independent mixing zone study and demonstrated to the satisfaction of the RWQCB that a dilution credit is appropriate. | Applies to incompletely-mixed discharges seeking dilution credits | high |
| #Q076 | reporting | reporting | mandatory | TCDD TEF-adjusted Reporting | wastewater | The RWQCB shall require the discharger to multiply each measured or estimated congener concentration by its respective TEF value (presented above) and report the sum of these values. | Required during the three-year TCDD monitoring period | high |
| #Q077 | administrative | operational | mandatory | Intake Water Credit Demonstration | wastewater | A RWQCB may consider priority pollutants in intake water on a pollutant-by-pollutant and discharge-by-discharge basis... provided that the discharger has demonstrated to the satisfaction of the RWQCB that [five specified conditions] are met. | Applies when a discharger seeks effluent limitations based on intake water credits | high |
| #Q078 | reporting | operational | mandatory | PMP Control Strategy Submittal | wastewater | The [PMP] program shall include... Submittal of a control strategy designed to proceed toward the goal of maintaining concentrations of the reportable priority pollutant(s) in the effluent at or below the effluent limitation; | Required when a Pollutant Minimization Program is mandated | high |
| #Q079 | reporting | reporting | mandatory | PMP Annual Status Report | wastewater | The [PMP] program shall include... An annual status report that shall be sent to the RWQCB including: a. All PMP monitoring results for the previous year; b. A list of potential sources... c. A summary of all actions... and d. A description of actions to be taken in the following year. | Required for participants in a Pollutant Minimization Program | high |
| #Q080 | administrative | operational | mandatory | Effluent Limitation during Translator Study | wastewater | While a translator study is being conducted, a final effluent limitation based on the applicable U.S. EPA conversion factor shall be included in the provisions of the permit and interim requirements shall be established (in accordance with section 2.2.2). | While a site-specific translator study is being conducted | high |
| #Q081 | monitoring | reporting | mandatory | Additional monitoring for insufficient data | wastewater | If data are unavailable or insufficient, as described in section 1.2, to conduct the above analysis for the pollutant, or if all reported detection limits of the pollutant in the effluent are greater than or equal to the C value, the RWQCB shall require additional monitoring for the pollutant in place of a water quality-based effluent limitation. | When data is insufficient for reasonable potential analysis | high |
| #Q082 | administrative | operational | mandatory | Basis for interim numeric limitations | wastewater | Numeric interim limitations for the pollutant must be based on current treatment facility performance or on existing permit limitations, whichever is more stringent. | When a compliance schedule exceeds one year | high |
| #Q083 | administrative | reporting | mandatory | Interim requirement frequency | wastewater | There shall be no more than one year between interim dates. | When a compliance schedule is established in an NPDES permit | high |
| #Q084 | administrative | treatment | mandatory | Toxicity/TRE permit provisions | aquatic life | The following shall be incorporated into permits: (1) a requirement to conduct a TRE if repeated tests reveal toxicity as a result of the waste discharge; (2) a provision requiring a discharger to take all reasonable steps to control toxicity once the source of toxicity is identified; and (3) a statement that failure to conduct required toxicity tests or a TRE within a designated period shall result in the establishment of effluent limitations for chronic toxicity in a permit or appropriate enforcement action. | high | |
| #Q085 | administrative | reporting | mandatory | Permit reopener for PMP | wastewater | The permit shall contain a reopener clause authorizing modifications, or revocation and reissuance of the permit, as a result of the detection of a reportable priority pollutant generated by special conditions included in the permit. | When a Pollutant Minimization Program is required | high |
| #Q086 | monitoring | reporting | mandatory | Analytical method selection options | wastewater | Options for analytical methods are: (1) those methods listed in Appendix 4 and described in Tables 1A, 1B, 1C, 1D, and 1E of 40 CFR 136.3 (revised as of May 14, 1999); or alternate test procedures... or (2) where no methods are specified for a given pollutant in the tables described in (1) above, methods approved by the SWRCB or RWQCB. | high | |
| #Q087 | administrative | operational | mandatory | Public meeting for site-specific objectives | drinking water, wastewater | the RWQCB shall, at a public meeting, consider initiating the development of a site-specific objective under the following conditions: (1) A written request... (2) Either [standard not achieved or limit cannot be met]... and (3) A demonstration that the discharger cannot be assured of achieving the criterion. | When a request for site-specific objectives is filed | high |
| #Q088 | administrative | operational | mandatory | Effluent reevaluation on significant change | wastewater | Any significant change in effluent quantity or quality shall be cause for reevaluation of effluent limitations. | Upon significant change in effluent discharge | high |
| #Q089 | administrative | operational | mandatory | Comparison of water quality and technology-based limits | wastewater | Regardless of which method is used for deriving water quality-based effluent limitations, the calculated water quality-based effluent limitations shall be compared to the technology-based effluent limitations for the pollutant, and the most protective of the two types of limitations shall be included in the permit. | When deriving effluent limitations for permits | high |
| #Q090 | design | operational | mandatory | End-of-pipe limitation application | wastewater | Effluent limitations shall apply to the total effluent of a waste discharge at the end-of-pipe, except in the rare situations where it is impractical or infeasible (e.g., where the final discharge point is inaccessible, or the pollutants are so diluted by cooling water as to make monitoring impractical, or interferences among pollutants make analysis infeasible). | Standard application unless impracticality is demonstrated | high |
| #Q091 | monitoring | reporting | mandatory | RWQCB monitoring specification | wastewater | the RWQCB shall determine, and specify under the monitoring and reporting requirements, the sampling parameters, monitoring frequencies, locations, and analytical methods to be used. | To be specified in all permits | high |
| #Q092 | administrative | reporting | mandatory | AMEL compliance calculation procedure | wastewater | When determining compliance with an AMEL and more than one sample result is available in a month, the discharger shall compute the arithmetic mean unless the data set contains one or more reported determinations of DNQ or ND. | When calculating monthly averages for compliance | high |
| #Q093 | prohibition | operational | mandatory | New discharger compliance schedule prohibition | wastewater | Compliance schedules shall not be allowed in permits for new dischargers. | Applies to any building/facility constructed after the policy effective date | high |
| #Q094 | administrative | operational | mandatory | Mandatory interim limits for long schedules | wastewater | When a compliance schedule exceeds one year from the date of permit issuance, interim limitations with specific compliance dates (as described in section 2.2.1) shall be included in the NPDES permit. | Where compliance schedule is > 1 year | high |
| #Q095 | administrative | operational | mandatory | Special study impact analysis requirement | other | the RWQCB staff shall, as part of the special study workplan: (1) Comply with CEQA, if applicable; and (2) Direct the preparation of an analysis documenting economic impacts if site-specific objectives or a change in designated beneficial uses is being considered | During the development of a special study workplan | high |
| Req ID | Category | Intent | Legal Status | Name | Subdomain(s) | Limit Type | Limit Value | Context | Conditions | Confidence |
|---|---|---|---|---|---|---|---|---|---|---|
| #P001 | microbiological | treatment | mandatory | Organisms greater than or equal to 50 micrometers | wastewater, other | MAC | < 10 living organisms per cubic meter | Ballast Water Discharge Standard for biological parameters (expressed as instantaneous maximums) | Any ballast water discharge unless exempted | high |
| #P002 | microbiological | treatment | mandatory | Organisms less than 50 micrometers and greater than or equal to 10 micrometers | wastewater, other | MAC | < 10 living organisms per milliliter (mL) | Ballast Water Discharge Standard for biological parameters | Any ballast water discharge unless exempted | high |
| #P003 | microbiological | health | mandatory | Toxicogenic Vibrio cholerae (serotypes O1 and O139) | wastewater | MAC | < 1 colony-forming unit (cfu) per 100 mL | Ballast Water Discharge Standard for biological parameters | Any ballast water discharge unless exempted | high |
| #P004 | microbiological | health | mandatory | Escherichia coli | wastewater | MAC | < 250 cfu, or MPN, per 100 mL | Ballast Water Discharge Standard for biological parameters | Any ballast water discharge unless exempted | high |
| #P005 | microbiological | health | mandatory | Intestinal enterococci | wastewater | MAC | < 100 cfu, or MPN, per 100 mL | Ballast Water Discharge Standard for biological parameters | Any ballast water discharge unless exempted | high |
| #P006 | chemical | operational | mandatory | Chlorine dioxide | wastewater | MAC | <= 200 µg/L | For any discharge from a BWMS using chlorine dioxide | Ballast Water Discharge Standard for biocide parameters | high |
| #P007 | chemical | operational | mandatory | Total residual oxidizers | wastewater | MAC | <= 100 µg/L | For any discharge from a BWMS using chlorine or ozone | Ballast Water Discharge Standard for biocide parameters | high |
| #P008 | chemical | operational | mandatory | Peracetic acid | wastewater | MAC | <= 500 µg/L | For any discharge from a BWMS using peracetic acid | Ballast Water Discharge Standard for biocide parameters | high |
| #P009 | chemical | operational | mandatory | Hydrogen peroxide | wastewater | MAC | <= 1,000 µg/L | For any discharge from a BWMS using peracetic acid | Ballast Water Discharge Standard for biocide parameters | high |
| #P010 | chemical | treatment | mandatory | Oil content | wastewater | MAC | <= 15 ppm | The discharge of bilgewater must not have an oil content that exceeds 15 ppm | For any vessel of 400 GT and above | high |
| #P011 | physical | treatment | mandatory | pH | wastewater | MAC | >= 6.5 pH units | The discharge must have a pH of no less than 6.5 as measured at the vessel's overboard discharge point | Discharges from exhaust gas emission control systems. May be exceeded for up to 15 minutes in any 12-hour period. | high |
| #P012 | chemical | treatment | mandatory | PAHs (Polycyclic Aromatic Hydrocarbons) | wastewater | MAC | <= 50 µg/L PAHphe | The maximum continuous PAH concentration in the discharge must be no greater than 50 µg/L PAHphe (phenanthrene equivalents) above the inlet water PAH concentration. | Discharges from exhaust gas emission control systems. May be exceeded by 100% for up to 15 minutes in any 12-hour period. | high |
| #P013 | physical | treatment | mandatory | Turbidity/suspended particulate matter | wastewater | MAC | <= 25 FNU or NTU | The maximum continuous turbidity in the discharge must be no greater than 25 FNU or 25 NTU or equivalent units above the inlet water turbidity. | Discharges from exhaust gas emission control systems. | high |
| #P014 | chemical | treatment | mandatory | Nitrates plus nitrites | wastewater | MAC | <= 60 mg/L | Must prevent the discharge of nitrates plus nitrites beyond that associated with a 12% removal of NOx from the exhaust, or beyond 60 mg/L | Normalized for a discharge rate of 45 tons/MWh | high |
| #P015 | microbiological | treatment | mandatory | Fecal coliform | wastewater | MAC | <= 20 cfu, or MPN, per 100 mL | The 30-day geometric mean must not exceed 20 cfu, or MPN, per 100 mL. | Discharge of graywater from specific required vessels. | high |
| #P016 | chemical | treatment | mandatory | BOD5 | wastewater | MAC | <= 30 mg/L | The 30-day average must not exceed 30 mg/L. | Discharge of graywater from specific required vessels. | high |
| #P017 | physical | treatment | mandatory | Suspended solids | wastewater | MAC | <= 30 mg/L | The 30-day average must not exceed 30 mg/L. | Discharge of graywater from specific required vessels. | high |
| #P018 | physical | treatment | mandatory | pH | wastewater | MAC | 6.0 - 9.0 pH units | Must be maintained between 6.0 and 9.0. | Discharge of graywater from specific required vessels. | high |
| #P019 | chemical | treatment | mandatory | Total residual oxidizers | wastewater | MAC | <= 10.0 µg/L | For any discharge from a graywater system using chlorine, total residual oxidizers must not exceed 10.0 µg/L. | Discharge of graywater from specific required vessels. | high |
| #P020 | chemical | treatment | mandatory | Total residual chlorine | wastewater, recreational water | MAC | < 100 µg/L | For chlorine disinfection: total residual chlorine less than 100 µg/L | Discharge of pool and spa water | high |
| #P021 | chemical | treatment | mandatory | Total residual oxidant | wastewater, recreational water | MAC | < 25 µg/L | For bromine disinfection: total residual oxidant less than 25 µg/L. | Discharge of pool and spa water | high |
| #P022 | chemical | health | mandatory | Arsenic Ceiling Concentration | agricultural water | MAC | <= 75 mg/kg dry weight | Pollutant concentration limits for biosolids applied to land. | Dry weight basis. | high |
| #P023 | chemical | health | mandatory | Cadmium Ceiling Concentration | agricultural water | MAC | <= 85 mg/kg dry weight | Pollutant concentration limits for biosolids applied to land. | Dry weight basis. | high |
| #P024 | chemical | health | mandatory | Copper Ceiling Concentration | agricultural water | MAC | <= 4300 mg/kg dry weight | Pollutant concentration limits for biosolids applied to land. | Dry weight basis. | high |
| #P025 | chemical | health | mandatory | Lead Ceiling Concentration | agricultural water | MAC | <= 840 mg/kg dry weight | Pollutant concentration limits for biosolids applied to land. | Dry weight basis. | high |
| #P026 | chemical | health | mandatory | Mercury Ceiling Concentration | agricultural water | MAC | <= 57 mg/kg dry weight | Pollutant concentration limits for biosolids applied to land. | Dry weight basis. | high |
| #P027 | chemical | health | mandatory | Nickel Ceiling Concentration | agricultural water | MAC | <= 420 mg/kg dry weight | Pollutant concentration limits for biosolids applied to land. | Dry weight basis. | high |
| #P028 | chemical | health | mandatory | Selenium Ceiling Concentration | agricultural water | MAC | <= 100 mg/kg dry weight | Pollutant concentration limits for biosolids applied to land. | Dry weight basis. | high |
| #P029 | chemical | health | mandatory | Zinc Ceiling Concentration | agricultural water | MAC | <= 7500 mg/kg dry weight | Pollutant concentration limits for biosolids applied to land. | Dry weight basis. | high |
| #P030 | microbiological | health | mandatory | Class A Biosolids Fecal Coliform Limit | agricultural water | MAC | <= 1000 MPN per gram | Pathogen reduction standard for Class A biosolids. | Fecal coliform concentration. | high |
| #P031 | microbiological | health | mandatory | Class A Biosolids Salmonella sp. Limit | agricultural water | MAC | < 3 MPN per four grams | Pathogen reduction standard for Class A biosolids. | Salmonella density. | high |
| #P032 | operational | operational | mandatory | Wind Speed Limit for Biosolids Application | agricultural water | requirement | <= 25 miles per hour | Biosolids with less than 75% moisture shall not be applied during high winds. | Wind speed determined by nearest calibrated regional weather station. | high |
| #P033 | design | health | mandatory | Setback - Domestic Water Supply Wells | drinking water, agricultural water | requirement | >= 500 feet | Staging and application areas must maintain distance from domestic wells. | May be reduced to 100 feet with professional demonstration. | high |
| #P034 | design | health | mandatory | Setback - Surface Waters | agricultural water | requirement | >= 100 feet | Staging and application areas must maintain distance from surface waters, wetlands, and creeks. | high | |
| #P035 | chemical | health | mandatory | Molybdenum Ceiling Concentration | agricultural water, other | MAC | <= 75 mg/kg dry weight | Ceiling concentration for biosolids applied to land | Dry weight basis | high |
| #P036 | physical | operational | mandatory | Maximum Application Slope | agricultural water, other | requirement | <= 25 percent | The application of biosolids to slopes exceeding this value is prohibited | high | |
| #P037 | physical | operational | mandatory | Minimum Moisture Content for Class B Biosolids | agricultural water | requirement | >= 50 percent | The application of Class B biosolids containing a moisture content less than this value is prohibited | high | |
| #P038 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Arsenic | agricultural water | MAC | 36 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | For cumulative adjusted loading rate calculation | high |
| #P039 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Zinc | agricultural water | MAC | 2494 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | For cumulative adjusted loading rate calculation | high |
| #P040 | design | aesthetic | mandatory | Setback - Property Lines | other | requirement | >= 10 feet | Minimum distance between staging/application areas and property lines | May be waived when adjacent properties also use biosolids | high |
| #P041 | design | health | mandatory | Setback - Public Roads and Occupied Onsite Residences | other | requirement | >= 50 feet | Minimum distance from staging/application areas | high | |
| #P042 | design | health | mandatory | Setback - Domestic Surface Water Supply Intake | drinking water | requirement | >= 2500 feet | Minimum distance from any domestic surface water supply intake | high | |
| #P043 | operational | operational | mandatory | Maximum Storage Duration | other | requirement | <= 7 consecutive days | Biosolids shall not be stored for more than this duration prior to application | At the application site or intermediate storage location | high |
| #P044 | operational | reporting | mandatory | Waiting Period for Termination of Coverage (Class B) | other | requirement | >= 38 months | Termination of coverage for sites using Class B biosolids | Measured after the last Class B biosolids application | high |
| #P045 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Cadmium | agricultural water | MAC | 34 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | Dry weight basis | high |
| #P046 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Copper | agricultural water | MAC | 1336 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | Dry weight basis | high |
| #P047 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Lead | agricultural water | MAC | 267 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | Dry weight basis | high |
| #P048 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Mercury | agricultural water | MAC | 15 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | Dry weight basis | high |
| #P049 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Molybdenum | agricultural water | MAC | 16 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | Dry weight basis. Value subject to USEPA 40 CFR Part 503 establishment. | high |
| #P050 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Nickel | agricultural water | MAC | 374 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | Dry weight basis | high |
| #P051 | chemical | health | mandatory | Cumulative Pollutant Loading Rate - Selenium | agricultural water | MAC | 89 Lbs./Acre | Risk Assessment Acceptable Soil Concentration (RP value) | Dry weight basis | high |
| #P052 | design | health | mandatory | Setback - Non-domestic water supply wells | other | requirement | >= 100 feet | Minimum distance for staging and biosolids application areas | May be reduced to 25 feet if site conditions protect groundwater | high |
| #P053 | design | health | mandatory | Setback - Primary agricultural drainage ways | agricultural water | requirement | >= 33 feet | Minimum distance for staging and biosolids application areas | high | |
| #P054 | design | health | mandatory | Setback - Domestic water supply reservoir | drinking water | requirement | >= 400 feet | Minimum distance from staging and application areas | high | |
| #P055 | operational | health | mandatory | Grazing Deferral - Domesticated Animals (> 50F) | agricultural water | requirement | >= 60 days | Wait period after biosolids application in areas with avg daily air temp > 50F | Required for Class B biosolids | high |
| #P056 | operational | health | mandatory | Harvesting Wait Period - Food crops below surface | agricultural water | requirement | >= 38 months | Wait period when biosolids remained exposed for less than four months prior to incorporation | Applies to food crops with harvested parts below land surface | high |
| #P057 | chemical | health | mandatory | Arsenic Biosolids Ceiling Concentration | other | MAC | 75 mg/kg | Biosolids Feedstock Ceiling Concentrations | Biosolids used as feedstock must comply with 40 CFR part 503.13 Table 1 | high |
| #P058 | design | health | mandatory | Minimum Setback Distance | drinking water, aquatic life | requirement | >= 100 feet | Composting operations distance from surface water or water supply wells | May be reduced if Discharger demonstrates site conditions protect water quality | high |
| #P059 | design | operational | mandatory | Tier 1 Maximum Material Volume | other | requirement | < 25000 cubic yards | Combined volume of feedstocks, compost, additives, and amendments on site | For Tier 1 classification | high |
| #P060 | design | treatment | mandatory | Design Storm Event Capacity | wastewater | requirement | 25-year, 24-hour peak storm event | Working surfaces, ponds, and berms must manage runoff and precipitation | Applies to all tiers | high |
| #P061 | design | treatment | mandatory | Tier 2 Working Surface Hydraulic Conductivity | wastewater | requirement | <= 1.0 x 10^-5 cm/s | Working surface permeability to limit infiltration | Applies to Tier 2 only | high |
| #P062 | design | treatment | mandatory | Tier 2 Detention Pond Hydraulic Conductivity | wastewater | requirement | <= 1.0 x 10^-6 cm/s | Liner system permeability for detention ponds | Applies to Tier 2 only | high |
| #P063 | operational | aesthetic | mandatory | Detention Pond Dissolved Oxygen | wastewater | requirement | >= 1.0 mg/L | Minimum concentration in the upper one foot of detention ponds | high | |
| #P064 | operational | operational | mandatory | Tier 1 Maximum Additive Percentage | other | requirement | <= 10 percent | Total volume of additives for any given batch of compost | Tier 1 facilities | high |
| #P065 | operational | reporting | mandatory | Compliance Schedule Maximum Duration | other | requirement | <= 6 years | Timeline for existing facilities to achieve full compliance | Calculated from the date of the Notice of Intent | high |
| #P066 | operational | operational | mandatory | Storm Event Inspection Window | wastewater | requirement | <= 7 days | Inspection of drainage facilities following major storm events | Repairs must be completed within 30 days of inspection | high |
| #P067 | design | treatment | mandatory | Minimum Intake Flow Rate Reduction (Track 1) | aquatic life | requirement | >= 93 percent | Reduction in intake flow rate for each unit compared to design intake flow rate | Installation of closed cycle dry cooling systems meets this requirement | high |
| #P068 | physical | treatment | mandatory | Maximum Through-Screen Intake Velocity (Track 1) | aquatic life | requirement | <= 0.5 foot per second | Maximum velocity through intake screens | high | |
| #P069 | operational | treatment | mandatory | Minimum Impingement Mortality Reduction (Track 2) | aquatic life | requirement | >= 90 percent | Achievement of reduction relative to Track 1 standards | Applies when Track 1 is demonstrated to be not feasible | high |
| #P070 | operational | treatment | mandatory | Minimum Flow Reduction for Entrainment (Track 2) | aquatic life | requirement | >= 93 percent | Reduction in terms of monthly flow | Compared to the average actual flow for the corresponding months from 2000-2005 | high |
| #P071 | operational | treatment | mandatory | Minimum Entrainment Reduction (Track 2) | aquatic life | requirement | >= 90 percent | Achievement of reduction relative to Track 1 standards | Applies to plants relying on other control technologies (screens, relocation) | high |
| #P072 | design | treatment | mandatory | Maximum Large Organism Exclusion Bar Spacing | aquatic life | requirement | <= 9 inches | Distance between exclusion bars for offshore intake devices | No later than October 1, 2011 | high |
| #P073 | operational | reporting | mandatory | Minimum Baseline Study Duration | aquatic life | requirement | >= 36 consecutive months | Duration for baseline impingement and entrainment studies | Studies must characterize seasonal abundance and variation | high |
| #P074 | physical | reporting | mandatory | Maximum Entrainment Sampling Mesh Size | aquatic life | requirement | <= 335 microns | Mesh size for collecting samples to determine larval composition | Required for new baseline or confirmation studies | high |
| #P075 | physical | reporting | mandatory | Additional Meroplankton Sampling Mesh Size | aquatic life | requirement | 200 microns | Additional samples collected to provide broader characterization | Used for invertebrate meroplankton species | high |
| #P076 | physical | operational | guideline | Zooplankton Minimum Size Definition | aquatic life | requirement | > 200 microns | Size threshold defining planktonic invertebrates | high | |
| #P077 | operational | treatment | mandatory | Nuclear Plant Compliance Cost Amortization Period | other | requirement | 20 years | Amortization period for calculating total dollars per megawatt hour of electrical energy | Used by the State Water Board in evaluating the need to modify the policy for nuclear plants | high |
| #P078 | operational | treatment | mandatory | Impingement Sampling Duration | aquatic life | requirement | 24 hours | Baseline impingement shall be measured during different seasons and over 24-hour sampling periods | During cooling system operation | high |
| #P079 | physical | treatment | mandatory | Maximum Through-Screen Intake Velocity (Track 2) | aquatic life | requirement | <= 0.5 foot per second | For plants relying solely on reductions in velocity for Track 2 compliance | Determined by monthly verification of velocity | high |
| #P080 | operational | reporting | mandatory | Meeting Public Notice Period | other | requirement | >= 10 days | SACCWIS and Nuclear Review Committee meetings shall be noticed in advance | high | |
| #P081 | operational | reporting | mandatory | State Water Board Hearing Window for LADWP | other | requirement | <= 45 days | Timeframe for the State Water Board to conduct a hearing after receiving written notice from LADWP | Applies to reliability suspensions for LADWP service area | high |
| Req ID | Category | Name | Context | Confidence |
|---|---|---|---|---|
| #D001 | ACUTELY TOXIC CONDITIONS | ACUTELY TOXIC CONDITIONS, as used in the context of mixing zones, refers to lethality that occurs to mobile aquatic organisms that move or drift through the mixing zone. | high | |
| #D002 | ARITHMETIC MEAN ( µ ) | ARITHMETIC MEAN ( µ ), also called the average, is the sum of measured values divided by the number of samples. For ambient water concentrations, the arithmetic mean is calculated as follows: Arithmetic mean = µ = Σ x / n where: Σ x is the sum of the measured ambient water concentrations, and n is the number of samples. | high | |
| #D003 | AVERAGE MONTHLY EFFLUENT LIMITATION (AMEL) | AVERAGE MONTHLY EFFLUENT LIMITATION (AMEL) means the highest allowable average of daily pollutant discharges over a calendar month, calculated as the sum of all daily discharges measured during a calendar month divided by the number of measurements. | high | |
| #D004 | BEST MANAGEMENT PRACTICES (BMPs) | BEST MANAGEMENT PRACTICES (BMPs) are methods, measures, or practices designed and selected to reduce or eliminate the discharge of pollutants to surface waters from point and nonpoint source discharges including storm water. BMPs include structural and non-structural controls, and operation and maintenance procedures, which can be applied before, during, and/or after pollution producing activities. | high | |
| #D005 | BIOACCUMULATIVE | BIOACCUMULATIVE pollutants are those substances taken up by an organism from its surrounding medium through gill membranes, epithelial tissue, or from food and subsequently concentrated and retained in the body of the organism. | high | |
| #D006 | BIOLOGICALLY-BASED RECEIVING WATER FLOW | BIOLOGICALLY-BASED RECEIVING WATER FLOW refers to the method for determining receiving water flows developed by the U.S. EPA Office of Research and Development which directly uses the averaging periods and exceedance frequencies specified in the acute and chronic aquatic life criteria for individual pollutants (e.g., 1 day and 3 years for acute criteria, and 4 days and 3 years for the chronic criteria). Biologically-based flows can be calculated using the program DFLOW. | high | |
| #D007 | CARCINOGENIC | CARCINOGENIC pollutants are substances that are known to cause cancer in living organisms. | high | |
| #D008 | COEFFICIENT OF VARIATION ( CV ) | COEFFICIENT OF VARIATION ( CV ) is a measure of the data variability and is calculated as the estimated standard deviation divided by the arithmetic mean of the observed values. | high | |
| #D009 | COMPLETELY-MIXED DISCHARGE | COMPLETELY-MIXED DISCHARGE condition means not more than a 5 percent difference, accounting for analytical variability, in the concentration of a pollutant exists across a transect of the water body at a point within two stream/river widths from the discharge point. | high | |
| #D010 | DILUTION CREDIT | DILUTION CREDIT is the amount of dilution granted to a discharge in the calculation of a water quality-based effluent limitation, based on the allowance of a specified mixing zone. It is calculated from the dilution ratio or determined through conducting a mixing zone study or modeling of the discharge and receiving water. | high | |
| #D011 | DILUTION RATIO | DILUTION RATIO is the critical low flow of the upstream receiving water divided by the flow of the effluent discharged. | high | |
| #D012 | DISCHARGER-SPECIFIC WER | DISCHARGER-SPECIFIC WER is a WER that is applied to individual pollutant limits in an NPDES permit issued to a particular permit holder. A discharger-specific WER applies only to the applicable limits in the discharger's permit. Discharger-specific WERs are distinguished for WERs that are developed on a waterbody or watershed basis as part of a water quality standards action resulting in adoption of an SSO. | high | |
| #D013 | DYNAMIC MODELS | DYNAMIC MODELS used for calculating effluent limitations predict the effects of receiving water and effluent flow and of concentration variability. The outputs of dynamic models can be used to base effluent limitations on probability estimates of receiving water concentrations rather than critical conditions (which are used in the steady-state model). The three dynamic modeling techniques recommended by the U.S. EPA for calculating effluent limitations are continuous simulation, Monte Carlo simulation, and lognormal probability modeling. | high | |
| #D014 | EFFLUENT CONCENTRATION ALLOWANCE (ECA) | EFFLUENT CONCENTRATION ALLOWANCE (ECA) is a value derived from the water quality criterion/objective, dilution credit, and ambient background concentration that is used, in conjunction with the coefficient of variation for the effluent monitoring data, to calculate a longterm average (LTA) discharge concentration. The ECA has the same meaning as waste load allocation (WLA) as used in U.S. EPA guidance (Technical Support Document For Water Quality-based Toxics Control, March 1991, second printing, EPA/505/2-90-001). | high | |
| #D015 | ENCLOSED BAYS | ENCLOSED BAYS means indentations along the coast that enclose an area of oceanic water within distinct headlands or harbor works. Enclosed bays include all bays where the narrowest distance between the headlands or outermost harbor works is less than 75 percent of the greatest dimension of the enclosed portion of the bay. Enclosed bays include, but are not limited to, Humboldt Bay, Bodega Harbor, Tomales Bay, Drake's Estero, San Francisco Bay, Morro Bay, Los Angeles-Long Beach Harbor, Upper and Lower Newport Bay, Mission Bay, and San Diego Bay. Enclosed bays do not include inland surface waters or ocean waters. | high | |
| #D016 | ESTIMATED CHEMICAL CONCENTRATION | ESTIMATED CHEMICAL CONCENTRATION is the estimated chemical concentration that results from the confirmed detection of the substance by the analytical method below the ML value. | high | |
| #D017 | ESTUARIES | ESTUARIES means waters, including coastal lagoons, located at the mouths of streams that serve as areas of mixing for fresh and ocean waters. Coastal lagoons and mouths of streams that are temporarily separated from the ocean by sandbars shall be considered estuaries. Estuarine waters shall be considered to extend from a bay or the open ocean to a point upstream where there is no significant mixing of fresh water and seawater. Estuarine waters included, but are not limited to, the Sacramento-San Joaquin Delta, as defined in Water Code Section 12220, Suisun Bay, Carquinez Strait downstream to the Carquinez Bridge, and appropriate areas of the Smith, Mad, Eel, Noyo, Russian, Klamath, San Diego, and Otay rivers. Estuaries do not include inland surface waters or ocean waters. | high | |
| #D018 | EXISTING DISCHARGER | EXISTING DISCHARGER means any discharger that is not a new discharger. An existing discharger includes an 'increasing discharger' (i.e., an existing facility with treatment systems in place for its current discharge that is or will be expanding, upgrading, or modifying its existing permitted discharge after the effective date of this Policy). | high | |
| #D019 | FOUR-DAY AVERAGE OF DAILY MAXIMUM FLOWS | FOUR-DAY AVERAGE OF DAILY MAXIMUM FLOWS is the average of daily maximums taken from the data set in four-day intervals. | high | |
| #D020 | HARMONIC MEAN | HARMONIC MEAN flows are expressed as Qhm = (n)/( Σ n i=1 1/xi), where xi = specific data values and n = number of data values. | high | |
| #D021 | INCOMPLETELY-MIXED DISCHARGE | INCOMPLETELY-MIXED DISCHARGE is a discharge that contributes to a condition that does not meet the meaning of a completely-mixed discharge condition. | high | |
| #D022 | INFEASIBLE | INFEASIBLE means not capable of being accomplished in a successful manner within a reasonable period of time, taking into account economic, environmental, legal, social, and technological factors. | high | |
| #D023 | INLAND SURFACE WATERS | INLAND SURFACE WATERS are all surface waters of the State that do not include the ocean, enclosed bays, or estuaries. | high | |
| #D024 | LOAD ALLOCATION (LA) | LOAD ALLOCATION (LA) is the portion of a receiving water's total maximum daily load that is allocated to one of its nonpoint sources of pollution or to natural background sources. | high | |
| #D025 | LONG-TERM ARITHMETIC MEAN FLOW | LONG-TERM ARITHMETIC MEAN FLOW is at least two years of flow data used in calculating an arithmetic mean as defined in this appendix. | high | |
| #D026 | MAXIMUM DAILY FLOW | MAXIMUM DAILY FLOW is the maximum flow sample of all samples collected in a calendar day. | high | |
| #D027 | MAXIMUM DAILY EFFLUENT LIMITATION (MDEL) | MAXIMUM DAILY EFFLUENT LIMITATION (MDEL) means the highest allowable daily discharge of a pollutant, over a calendar day (or 24-hour period). For pollutants with limitations expressed in units of mass, the daily discharge is calculated as the total mass of the pollutant discharged over the day. For pollutants with limitations expressed in other units of measurement, the daily discharge is calculated as the arithmetic mean measurement of the pollutant over the day. | high | |
| #D028 | MEDIAN | MEDIAN is the middle measurement in a set of data. The median of a set of data is found by first arranging the measurements in order of magnitude (either increasing or decreasing order). If the number of measurements ( n ) is odd, then the median = X( n +1)/2 . If n is even, then the median = (Xn/2 + X(n/2)+1)/2 (i.e., the midpoint between the n /2 and n /2+1). | high | |
| #D029 | METHOD DETECTION LIMIT (MDL) | METHOD DETECTION LIMIT (MDL) is the minimum concentration of a substance that can be measured and reported with 99 percent confidence that the analyte concentration is greater than zero, as defined in 40 CFR 136, Appendix B, revised as of May 14, 1999. | high | |
| #D030 | MINIMUM LEVEL (ML) | MINIMUM LEVEL (ML) is the concentration at which the entire analytical system must give a recognizable signal and acceptable calibration point. The ML is the concentration in a sample that is equivalent to the concentration of the lowest calibration standard analyzed by a specific analytical procedure, assuming that all the method specified sample weights, volumes, and processing steps have been followed. | high | |
| #D031 | MIXING ZONE | MIXING ZONE is a limited volume of receiving water that is allocated for mixing with a wastewater discharge where water quality criteria can be exceeded without causing adverse effects to the overall water body. | high | |
| #D032 | MUTAGENIC | MUTAGENIC pollutants are substances that are known to cause a mutation (i.e., change in a gene or chromosome) in living organisms. | high | |
| #D033 | MUTUAL WATER COMPANY | MUTUAL WATER COMPANY is defined in the Public Utilities Code, section 2725 as: 'any private corporation or association organized for the purpose of delivering water to its stockholders and members at cost, including use of works for conserving, treating and reclaiming water'. | high | |
| #D034 | NEW DISCHARGER | NEW DISCHARGER includes any building, structure, facility, or installation from which there is, or may be, a discharge of pollutants, the construction of which commenced after the effective date of this Policy. | high | |
| #D035 | OBJECTIONABLE BOTTOM DEPOSITS | OBJECTIONABLE BOTTOM DEPOSITS are an accumulation of materials or substances on or near the bottom of a water body, which creates conditions that adversely impact aquatic life, human health, beneficial uses, or aesthetics. These conditions include, but are not limited to, the accumulation of pollutants in the sediments and other conditions that result in harm to benthic organisms, production of food chain organisms, or fish egg development. The presence of such deposits shall be determined by RWQCB(s) on a case-by-case basis. | high | |
| #D036 | OCEAN WATERS | OCEAN WATERS are the territorial marine waters of the State as defined by California law to the extent these waters are outside of enclosed bays, estuaries, and coastal lagoons. Discharges to ocean waters are regulated in accordance with the SWRCB's California Ocean Plan. | high | |
| #D037 | PERSISTENT | PERSISTENT pollutants are substances for which degradation or decomposition in the environment is nonexistent or very slow. | high | |
| #D038 | POLLUTANT MINIMIZATION | POLLUTANT MINIMIZATION means waste minimization and pollution prevention actions that include, but are not limited to, product substitution, waste stream recycling, alternative waste management methods, and education of the public and businesses. | high | |
| #D039 | POLLUTION PREVENTION | POLLUTION PREVENTION means any action that causes a net reduction in the use or generation of a hazardous substance or other pollutant that is discharged into water and includes, but is not limited to, input change, operational improvement, production process change, and product reformulation (as defined in Water Code Section 13263.3). Pollution prevention does not include actions that merely shift a pollutant in wastewater from one environmental medium to another environmental medium, unless clear environmental benefits of such an approach are identified to the satisfaction of the SWRCB or RWQCB. | high | |
| #D040 | PROCESS OPTIMIZATION | PROCESS OPTIMIZATION means minor changes to the existing facility and treatment plant operations that optimize the effectiveness of the existing treatment processes. | high | |
| #D041 | PUBLIC ENTITY | PUBLIC ENTITY includes the federal government or a state, county, city and county, city, district, public authority, or public agency. | high | |
| #D042 | SOURCE OF DRINKING WATER | SOURCE OF DRINKING WATER is any water designated as municipal or domestic supply (MUN) in a RWQCB basin plan. | high | |
| #D043 | STANDARD DEVIATION ( σ ) | STANDARD DEVIATION ( σ ) is a measure of variability that is calculated as follows: σ = ( ∑ [(x - µ ) 2 ]/(n - 1)) 0.5 where: x is the observed value; µ is the arithmetic mean of the observed values; and n is the number of samples. | high | |
| #D044 | TERATOGENIC | TERATOGENIC pollutants are substances that are known to cause structural abnormalities or birth defects in living organisms. | high | |
| #D045 | TOXICITY REDUCTION EVALUATION (TRE) | TOXICITY REDUCTION EVALUATION (TRE) is a study conducted in a step-wise process designed to identify the causative agents of effluent or ambient toxicity, isolate the sources of toxicity, evaluate the effectiveness of toxicity control options, and then confirm the reduction in toxicity. The first steps of the TRE consist of the collection of data relevant to the toxicity, including additional toxicity testing, and an evaluation of facility operations and maintenance practices, and best management practices. A Toxicity Identification Evaluation (TIE) may be required as part of the TRE, if appropriate. (A TIE is a set of procedures to identify the specific chemical(s) responsible for toxicity. These procedures are performed in three phases (characterization, identification, and confirmation) using aquatic organism toxicity tests.) | high | |
| #D046 | USE ATTAINABILITY ANALYSIS | USE ATTAINABILITY ANALYSIS is a structured scientific assessment of the factors affecting the attainment of the use which may include physical, chemical, biological and economic factors as described in 40 CFR 131.10(g) (40 CFR 131.3, revised as of July 1, 1997). | high | |
| #D047 | WATER-EFFECT RATIO (WER) | WATER-EFFECT RATIO (WER) is an appropriate measure of the toxicity of a material obtained in a site water divided by the same measure of the toxicity of the same material obtained simultaneously in a laboratory dilution water. | high | |
| #D048 | 1Q10 | 1Q10 is the lowest flow that occurs for one day with a statistical frequency of once every 10 years. | high | |
| #D049 | 7Q10 | 7Q10 is the average low flow that occurs for seven consecutive days with a statistical frequency of once every 10 years. | high | |
| #D050 | 90 th PERCENTILE OF OBSERVED DATA | 90 th PERCENTILE OF OBSERVED DATA is the measurement in the ordered set of data (lowest to highest) where 90 percent of the reported measurements are less than or equal to that value. | high | |
| #D051 | toxic equivalency factors (TEFs) | The U.S. EPA has published toxic equivalency factors (TEFs) for 17 of the congeners. The TEFs express the relative toxicities of the congeners compared to 2,3,7,8-TCDD (whose TEF equals 1.0). | high | |
| #D052 | Conversion Factor | The term 'Conversion Factor' represents the recommended conversion factor for converting a metal criterion expressed as the total recoverable fraction in the water column to a criterion expressed as the dissolved fraction in the water column. | high | |
| #D053 | GC | Gas Chromatography | high | |
| #D054 | GCMS | Gas Chromatography/Mass Spectrometry | high | |
| #D055 | HRGCMS | High Resolution Gas Chromatography/Mass Spectrometry (i.e., EPA 1613, 1624, or 1625) | high | |
| #D056 | LC | High Pressure Liquid Chromatography | high | |
| #D057 | FAA | Flame Atomic Absorption | high | |
| #D058 | GFAA | Graphite Furnace Atomic Absorption | high | |
| #D059 | HYDRIDE | Gaseous Hydride Atomic Absorption | high | |
| #D060 | CVAA | Cold Vapor Atomic Absorption | high | |
| #D061 | ICP | Inductively Coupled Plasma | high | |
| #D062 | ICPMS | Inductively Coupled Plasma/Mass Spectrometry | high | |
| #D063 | SPGFAA | Stabilized Platform Graphite Furnace Atomic Absorption (i.e., EPA 200.9) | high | |
| #D064 | DCP | Direct Current Plasma | high | |
| #D065 | COLOR | Colorimetric | high | |
| #D066 | National Toxics Rule (NTR) | National Toxics Rule (NTR) | high | |
| #D067 | California Toxics Rule (CTR) | California Toxics Rule (CTR) | high | |
| #D068 | Regional Water Quality Control Boards (RWQCBs) | Regional Water Quality Control Boards (RWQCBs) | high | |
| #D069 | National Pollutant Discharge Elimination System (NPDES) | National Pollutant Discharge Elimination System (NPDES) | high | |
| #D070 | Total Maximum Daily Loads (TMDLs) | Total Maximum Daily Loads (TMDLs) | high | |
| #D071 | municipal and domestic supply (MUN) | municipal and domestic supply (MUN) | high | |
| #D072 | warm freshwater habitat (WARM) | warm freshwater habitat (WARM) | high | |
| #D073 | cold freshwater habitat (COLD) | cold freshwater habitat (COLD) | high | |
| #D074 | estuarine habitat (EST) | estuarine habitat (EST) | high | |
| #D075 | water contact recreation (REC1) | water contact recreation (REC1) | high | |
| #D076 | observed maximum pollutant concentration for the effluent (MEC) | observed maximum pollutant concentration for the effluent (MEC) | high | |
| #D077 | observed maximum ambient background concentration for the pollutant (B) | observed maximum ambient background concentration for the pollutant (B) | high | |
| #D078 | CTR criteria | CTR criteria, for purposes of this section, exclude NTR criteria. | high | |
| #D079 | Reporting Level (RL) | Reporting Level (RL) | high | |
| #D080 | Pollutant Minimization Program (PMP) | Pollutant Minimization Program (PMP) | high | |
| #D081 | Toxicity Identification Evaluation (TIE) | A TIE is a set of procedures to identify the specific chemical(s) responsible for toxicity. These procedures are performed in three phases (characterization, identification, and confirmation) using aquatic organism toxicity tests. | high | |
| #D082 | State Water Resources Control Board (SWRCB) | State Water Resources Control Board (SWRCB) | high | |
| #D083 | Waste Load Allocations (WLAs) | Waste Load Allocations (WLAs) | high | |
| #D084 | 2,3,7,8-CDDs | congeners of chlorinated dibenzodioxins | high | |
| #D085 | 2,3,7,8-CDFs | congeners of chlorinated dibenzofurans | high | |
| #D086 | long-term average discharge condition (LTA) | long-term average discharge condition ( LTA ) | high | |
| #D087 | Waste Discharge Requirements (WDRs) | Waste Discharge Requirements (WDRs) | high | |
| #D088 | Combined Sewer Overflow (CSO) | Combined Sewer Overflow (CSO) | high | |
| #D089 | use attainability analysis (UAA) | use attainability analysis (UAA) | high | |
| #D090 | Detected, but Not Quantified (DNQ) | Sample results less than the RL, but greater than or equal to the laboratory’s MDL, shall be reported as 'Detected, but Not Quantified,' or DNQ. | high | |
| #D091 | Not Detected (ND) | Sample results less than the laboratory’s MDL shall be reported as 'Not Detected,' or ND. | high | |
| #D092 | publicly-owned treatment works (POTWs) | publicly-owned treatment works (POTWs) | high | |
| #D093 | World Health Organization (WHO) | World Health Organization (WHO) | high | |
| #D094 | Clean Water Act (CWA) | federal Clean Water Act (CWA) | high | |
| #D095 | Policy | This state policy for water quality control (Policy), adopted by the State Water Resources Control Board on March 2, 2000 and effective by May 22, 2000 | high | |
| #D096 | RWQCB | Reference to a RWQCB also refers to SWRCB, where appropriate. | high | |
| #D097 | Waste Load Allocations (WLAs) | The ECA has the same meaning as waste load allocation (WLA) as used in U.S. EPA guidance (Technical Support Document For Water Quality-based Toxics Control, March 1991, second printing, EPA/505/2-90-001). | high | |
| #D098 | regional ambient monitoring | regional ambient monitoring is the collection of scientific information regarding water quality and impacts to beneficial uses for a specified portion of, or an entire, watershed or water body | high | |
| #D099 | contaminant fate and transport monitoring | contaminant fate and transport monitoring is the gathering of scientific information regarding how a specific pollutant[s] moves through the environment and how the pollutant[s] degrades or is otherwise transformed in the environment | high | |
| #D100 | SIP | Policy for Implementation of Toxics Standards for Inland Surface Waters, Enclosed Bays, and Estuaries of California | high | |
| #D101 | water quality standards | water quality criteria or objectives, and the beneficial uses they are intended to protect, as well as the State and federal antidegradation policies | high | |
| #D102 | TMDL | A TMDL establishes the amount of a pollutant that may be discharged into a water body and still maintain water quality standards with seasonal variations and a margin of safety that takes into account any lack of knowledge concerning the relationship between effluent limitations and water quality. | high | |
| #D103 | Watershed management | Watershed management is an integrated holistic approach for restoring and protecting aquatic ecosystems and protecting human health in a geographic area. | high | |
| #D104 | Site-Specific Objective | a water quality objective that differs from the applicable criterion or objective may be developed for the site. | high |